"ocean currents result from two processes: the wind on the surface of the water and variation in water temperature and density. these ocean currents are convection currents. under the tropical sun, water at the equator warms up. at the frigid poles, seawater cools down and sinks. convection cells are set up with warm water moving along the surface to the poles and deep cold water flowing toward the equator. changes in the density of ocean waters, caused by changes in salinity re also important in the formation of ocean currents. ice formation near the poles leaves salt behind in the remaining water. this denser, more saline water sinks, creating its own density-driven currents. surface winds also set surface currents into motion."

can you pick the statements that accurately describe oceans currents? check all the statements that are true.

'both the wind and solar energy influence ocean currents.'
'warm water flows away from the equator toward the poles.'
'as the salinity of ocean water increases, density decreases.'
'cold water sinks, warm water rises, creating a convection current.'